This seems like good advice from Hortonworks’ Ofer Mendelevitch. Python? Check. Java? Check. Hadoop? Check. SQL? Check. Stats? Check. But his closing remark — “The road to data science is not a walk in the park. … This takes time, effort and a personal investment.” — might be the most important. We often talk about democratizing some of the data science tools, but the really good ones can do it all.